Hm, could you upload the original sources of the images here? I would like to try this locally. It could be an issue with the media manager but I just tested this and it seems to be working for me.

Hm, could you upload the original sources of the images here? I would like to try this locally. It could be an issue with the media manager but I just tested this and it seems to be working for me.

Sure here you go...
One is the original D image and the other is the one optimized, made smaller, for use on the www.
I tried them both.

Appie

It seems like i can replicate this when i upload your image, i will log this into our issue tracker.

Hey there,

I already consult with our developer regarding this, it seems like that is default behaviour do not show transparent image in the block.

Perhaps you can apply following css code into your custom css file and see how it goes, so it will not show that white color background on the image.

#eb .eb-image-viewport {

     background: none !important; 

     border: 0px !important; 

}